<template>
    <div>
        <!--面包屑导航区-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
    <div id="main" style="width: 750px;height:400px;"></div>
  
    </el-card>
    </div>
</template>
<script>
import * as echarts from 'echarts'
import _ from 'lodash'
export default {
    data(){
        return{
            //需要合并的数据
         options: {
          title: {
            text: '用户来源'
          },
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'cross',
              label: {
                backgroundColor: '#E9EEF3'
              }
            }
          },
          grid: {
            left: '3%',
            right: '4%',
            bottom: '3%',
            containLabel: true
          },
          xAxis: [
            {
              boundaryGap: false
            }
          ],
          yAxis: [
            {
              type: 'value'
            }
          ]
        }
        }
    },
    created(){
        
    },
    async mounted(){
        //基于准备好的dom,初始化echarts
         var myChart = echarts.init(document.getElementById('main'));
         
         const{data:res}=await this.$http.get('reports/type/1')
         if(res.meta.status!==200){
             return this.$message.error('获取折线图数据失败')
         }
         //准备数据
       const result= _.merge(res.data,this.options)
        //展示数据
         myChart.setOption(result);

    },
    methods:{

    }
}
</script>
<style lang="less">

</style>